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2) With the motor loosely in the motor mount,

twist the motor so the wires on the back of the motor
are perpendicular to the mounting tabs on the motor
mount.  Slide the motor back so the front edge of the
motor is 3/4” in front of the motor mount halves.
Tighten the two machine screws to hold the motor
securely in place.  See photo # 27 below.

Photo # 27

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3) Place the motor assembly up against the front

of the firewall.  The motor wires and tabs should slide
through the precut slot in the firewall and the motor
mounting tabs should be vertical.

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4) To properly align the motor, center the motor

from left to right on the firewall.  For the proper height,
center the back of the motor in the middle of the pre-
cut slot in the firewall.  See photo # 28 below.

It is normal for the motor to be angled down.
The term for this angle is down-thrust.  The

Whisper has 5º of down-thrust built into the firewall.

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5) While holding the motor in position, mark

the locations of the four mounting holes onto the front
of the firewall.

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6) Remove the motor from the firewall.  Using

a 1/8” drill bit, drill four holes through the firewall at
the mounting hole locations.

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7) Mount the motor to the firewall using four

3mm x 18mm machine screws, four 3mm flat wash-
ers and four 3mm nylon insert nuts.  Slide the ma-
chine screws through the mounting tabs and holes in
the firewall, then install a flat washer and nylon

Photo # 28

Photo # 29

insert nut onto each screw.  Tighten the screws com-
pletely to hold the motor mount securely in place.

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8) Using a 1/4” drill bit, carefully drill three

holes through the firewall.  These holes should be
located 3/4” up from the bottom of the fuselage.  Two
of the holes are located 5/8” in from the fuselage
sides and one hole 1-1/8” from the fuselage side.
See photo # 29 below.

PARTS REQUIRED

COWL AND PROPELLER

INSTALLATION

JOINING THE COWL HALVES

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{2} Molded Plastic Cowl Halves, Right & Left

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{1} Nylon Propeller Hub

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{1} Nylon Spinner Cone

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{2} Propeller Blade Halves

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{1} Tapered Aluminum Hex Adapter

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{1} Threaded Adapter

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{1} Propeller Washer

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{1} Propeller Nut

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{3} 2mm x 12mm  Smooth Shank Machine Screws

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{4} 2mm x 12mm Wood Screws

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1) Test fit the cowl halves together.  One half

has a molded recess that the opposite half glues on to.
When aligned properly the front and back edges of
the cowl should be even and the seam should be flush.

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2) Hold the cowl halves together using strips of

masking tape taped along the outside of the entire
seam, both on the top and the bottom of the cowl.  It
is important that the tape covers the entire seam.

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3) Using Kwik Bond Thick C/A, glue the cowl

halves together from the inside.  To do this prop-
erly, run a thin bead of glue along the entire seam
while allowing the glue to seep into the seam and bond
the parts together.

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4) Allow the glue to thoroughly cure, then re-

move the masking tape.

Mounting

Tab

Motor

Wire

Mounting

Tab

Motor

Wire

Motor

Mount

Firewall

Drill

Holes

Firewall

3/4”

Motor

Machine

Screw

Summary of Contents for Whisper

Page 1: ...les have been strategically placed to remove unnecessary weight without compromising strength All this adds up to an airplane that climbs out with authority and will also do well in the thermals Inclu...

Page 2: ...the Outboard Dihedral Braces 7 Joining the Outboard Wing Panels 8 Joining the Wing Halves 8 Installing the Striping Tape 9 Installing the Wing Hold Down Strip 10 Wing Installation 10 Installing the F...

Page 3: ...ed Controls available for 540 and 05 size motors If you opt not to use a proportional electronic speed control an electronic switch such as the Hitec Motor Controller SP 1003 part 41003 is an economic...

Page 4: ...Nylon Pushrod Housings q 1 3mm x 55mm x 14mm Pushrod Support q 1 8mm x 20mm Clear Tubing q 2 Metal Clevises q 2 Nylon Control Horns w Backplates q 4 2mm x 15mm Machine Screws q 2 Adjustable Servo Conn...

Page 5: ...idow Peak Charger 350360 q Arco 64 Rubber Bands 24649 Recommended Optional Upgrades q Hitec Flash 4X FM Computer radio w 2 Servos q Trinity 7 Cell 1700Mah Battery 1779 q Promax Activator Digital Peak...

Page 6: ...in bold are listed in the glossary 3mm x 12mm Machine Screw Quantity 4 3mm x 8mm Machine Screw Quantity 2 2mm x 15mm Machine Screw Quantity 4 2mm x 12mm Smooth Shank Machine Screw Quantity 3 3mm Nylon...

Page 7: ...The prewired plastic connector on the motor is called a Tamiya Connector Most electronic speed controls also use this style of connector but some do not If your speed control does not have this type o...

Page 8: ...ces apply a thin layer of epoxy to only one side of only one of the two braces For the epoxy to work properly mix equal amounts of part A and part B Mix the two parts together for about 45 seconds unt...

Page 9: ...inboard panel so it does not move Magazines work good for this See figure 2 at top right Figure 2 The wing panels should fit together tight with little or no gaps in the joint If the joint is not tigh...

Page 10: ...posed half of the dihedral brace the inside of the plywood box in the root rib and the entire surface of both root ribs Make sure to use enough epoxy to fill any gaps q 24 Slide the two wing halves to...

Page 11: ...8 behind the front of the fuselage and 1 2 down from the top of the fuselage q 2 Test fit one of the 6mm x 32mm front wing hold down dowels into the predrilled hole in one front wing hold down dowel m...

Page 12: ...edge of the wing saddle and one mark on top of the forward bulkhead These two marks will help you align the wing when you install it onto the fuselage You may wish to make these marks in permanent in...

Page 13: ...pen and draw lines onto the stabilizer where it and the fuselage sides meet Do this on both the right and left sides on the bottom of the stabilizer q 8 Remove the stabilizer from the fuselage Us ing...

Page 14: ...HINGING THE RUDDER q 1 Hinge the rudder to the vertical stabilizer using the same technique used to hinge the elevator ALIGNING THE VERTICAL STABILIZER q 2 Set the vertical stabilizer on top of the h...

Page 15: ...cal stabilizer Use a modeling knife and 220 grit sandpaper to make any necessary adjustments to obtain the proper fit You may find that the sides of the fairing ex tend beyond the trailing edge of the...

Page 16: ...of the precut opening in the servo tray to fit your servos If so carefully use a modeling knife q 5 Install the two servos using the wood screws provided with your radio system Drill 1 16 pilot holes...

Page 17: ...re directly in line with the hinge line The control horn should also be perpendicular to the hinge line See figure 9 below Figure 9 q 9 When satisfied with the alignment use a 5 64 drill bit and the c...

Page 18: ...arm Enlarge the hole in the servo arm using a 5 64 drill bit to accommodate the servo connec tor Remove the excess material from the servo arm using a modeling knife See figure 11 below Figure 11 Afte...

Page 19: ...ug the rudder servo lead into the receiver Plug the battery into the motor controller and turn on the radio system Center the rudder trim tab on the transmitter Place the servo arm onto the servo The...

Page 20: ...washer and nylon Photo 28 Photo 29 insert nut onto each screw Tighten the screws com pletely to hold the motor mount securely in place q 8 Using a 1 4 drill bit carefully drill three holes through th...

Page 21: ...inum Overtightening the propel ler nut can damage the adapter q 11 Slide the spinner cone over the propeller blades and onto the hub Secure it in place by thread ing one 2mm x 12mm smooth shank machin...

Page 22: ...d set the canopy back in place Using a pen mark where the canopy needs to be cut to clear the front radius of the wing q 8 Using a modeling knife cut the canopy at the mark made Set the canopy back in...

Page 23: ...o the fuselage sides to hold the receiver se curely in place q 2 Using a 1 16 drill bit drill a hole through the side of the fuselage near the receiver for the antenna to exit Route the antenna out of...

Page 24: ...itial test flying training and for the accomplished pilot If this is your first air plane please set the control throws according to the training settings These settings allow the airplane to fly smoo...

Page 25: ...he green ABC s OF FLYING If you ve come this far now you re ready to prepare for the maiden voyage of your new Whisper Before proceeding we highly recommend double checking all of your work Make sure...

Page 26: ...oll yaw and pitch Roll is the wing tips raising and lowering Yaw is the nose mov ing from right to left Pitch is seen as the nose mov ing up and down Maintaining flight is the act of overcoming weight...

Page 27: ...le back to turn off the motor As the motor is turned off allow the plane s nose to drop some The descent should be gentle so let the nose drop about 10 to 20 degrees Keep the wing level unless a turn...

Page 28: ...ome keys to start this process that should help you learn to be a better thermal pilot BASICS OF THERMAL FLYING The first key is to become very familiar with the way the Whisper flies The way it respo...

Page 29: ...sticks to the wood frame of the airplane The Whis per uses heat sensitive vinyl covering Cycle The act of fully charging and discharging the flight battery Cycling the battery increases perfor mance a...

Page 30: ...rudder to turn the airplane It also gives the airplane vertical stability Wing Hold Down Dowels Round pieces of hard wood dowels inserted through the fuselage at the front and back of the wing They ar...

Page 31: ...maged q Wrong Size q Missing q Wrong Shape If you checked any of the boxes above did you contact our Customer Service Department to re solve the problem q Yes q No 7 Was any of the assembly difficult...

Page 32: ...2 Fold along dotted line Fold along dotted line Global Hobby Distributors Attn Wattage Customer Care 18480 Bandilier Circle Fountain Valley CA 92728 Post Office will not deliver without proper postage...

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